Dishwasher Distribution Cap for Dry Air Bypass and Water Blocking
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Solution Overview
Problem
The existing dish washer designs face challenges in preventing wash water from entering the drying nozzle and ensuring easy installation of the nozzle due to directivity issues and flow resistance caused by blocking structures, which lead to decreased air flow efficiency.
Innovation Solution
A distribution cap is designed to couple with the nozzle, featuring a fitting pipe, first and second bypass pipes that guide air flow without sudden direction changes, preventing wash water infiltration and enhancing air flow by increasing the discharge area and minimizing resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a blocking structure is applied to the discharge end portion of the nozzle to prevent wash water infiltration, then wash water entry is prevented, but the nozzle installation becomes difficult and flow loss increases
Solution Approach 1:
The distribution cap is divided into multiple functional segments: a fitting pipe for nozzle connection, a first bypass pipe for wash water diversion, and a second bypass pipe for dry air discharge. This segmentation allows each component to perform its specific function independently, preventing wash water from entering the nozzle while maintaining easy installation and optimal airflow.
2Ease of operation
If the blocking structure area is reduced to allow nozzle insertion, then installation becomes easier, but the flow cross-sectional area decreases causing flow loss
Solution Approach 1:
The distribution cap acts as an intermediary component between the nozzle and the washing space. It provides a separate pathway (first bypass pipe) for wash water to flow around the nozzle discharge end, and a second bypass pipe for dry air discharge. This mediator structure prevents direct contact between wash water and the nozzle while maintaining full flow cross-sectional area for air discharge.
3Reliability
If the cap surrounds the discharge end portion with spacing to prevent wash water entry, then wash water infiltration is reduced, but flow resistance and flow loss increase due to multiple direction changes
Solution Approach 1:
The distribution cap merges the wash water diversion function and dry air discharge function into a single integrated structure. The first bypass pipe and second bypass pipe are combined in a way that allows wash water to flow through the first pipe while dry air flows through the second pipe, both discharge openings working together to achieve wash water prevention and efficient air distribution without multiple sharp direction changes.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The distribution cap ensures easy installation of the nozzle and maintains a high discharge amount of dry air with reduced flow resistance, preventing wash water entry and ensuring efficient air distribution within the dish washer.
Implementation Method 1
A distribution cap is designed to couple with the nozzle, featuring a fitting pipe, first and second bypass pipes that guide air flow without sudden direction changes, preventing wash water infiltration and enhancing air flow by increasing the discharge area and minimizing resistance
Implementation Method 2
A distribution cap is designed to couple with the nozzle, featuring a fitting pipe, first and second bypass pipes that guide air flow without sudden direction changes, preventing wash water infiltration
Data Source
AI summary
A distribution cap is configured to couple to a nozzle of a dish washer and to guide air from the nozzle to be discharged in a discharge direction. The distribution cap includes a fitting pipe configured to couple to the nozzle, a first bypass pipe that is connected to the fitting pipe and extends in a direction different from the discharge direction, where the first bypass pipe is configured to be positioned above the nozzle based on the fitting pipe being coupled to the nozzle, and a second bypass pipe that extends from an end portion of the first bypass pipe in the discharge direction, where the second bypass pipe defines a discharge opening at an end portion thereof.